baber/WOPTO huggingface dataset:
Patent GB-880667-A (GB)
Title: Improvements in the production of polymers by anionic polymerisation in solution
Inventor: VOLLMERT BRUNO
IPC: C08F4/12
Filed: 1960-06-24
Abstract: The polymerization of unsaturated compounds using alkali metals or organo-alkali metal compounds as initiators, is discontinued by the addition of a half-ester of phthalic acid or a half-ester of a derivative of phthalic acid, e.g. tetrahydrophthalic acid or endomethylene tetrahydrophthalic acid.  The additional use of a small quantity of water is also advantageous.  Monomers specified are styrene, methyl styrenes, dimethyl styrene, aminostyrenes, vinyl naphthalene, methacrylic acid esters, isoprene, butadiene and dimethyl butadiene.  The materials used n the polymerization reaction and the termination thereof are preferably free of oxygen.  Polymer may be recovered by distilling off solvent or by the addition of methanol.  Specification 804,081 is referred to.
Patent GB-1253707-A (GB)
Title: Ethylene/vinyl ester/carboxylic acid copolymers and compositions containing them
Inventor: HOH GEORGE LOK-KWONG
IPC: C09D131/02
Filed: 1969-05-01
Abstract: 1,253,707. Coating. E.I. DU PONT DE NEMOURS & CO. 1 May, 1969 [2 May, 1968], No. 22331/69. Heading B2E. [Also in Division C3] Metals are coated and wood sealed by applying thereto lacquers comprising organic solvents, nitrocellulose and 10 to 60 weight per cent total solids of a copolymer of ethylene, 35 to 55 weight per cent of a vinyl ester and 1 to 5 weight per cent of unsaturated carboxylic acid. The ester may be vinyl acetate, formate, propionate or butyrate, or vinyl esters of C 9-10  α-branched carboxylic acids. The acid may be acrylic, methacrylic, crotonic, maleic or fumaric acid, or a maleic or fumaric half ester. Conventional ingredients such as modifying resins, e.g. sucrose acetate isobutyrate and maleic resin, may also be present. In examples (II) steel and primed and unprimed aluminium degreased with trichloroethylene are spray coated with lacquers comprising nitrocellulose, ethylene/vinyl acetate/ methacrylic acid copolymer, sucrose acetate isobutyrate, toluene, isopropanol and n-butyl acetate, and (III) wood is sealed with a lacquer comprising nitrocellulose, the copolymer, maleic resin, toluene, xylene, isopropanol, methyl isobutyl carbinol, methyl isobutyl ketone and methyl amyl ketone.
Patent GB-1502452-A (GB)
Title: Catalyst and process for polymerizing ethylene
IPC: C08F4/64
Filed: 1975-05-22
Abstract: 1502452 Organoaluminium compounds ASAHI KASEI KOGYO KK 22 May 1975 [6 June 1974 (2)] 22360/75 Heading C2J [Also in Division C3] Hydrocarbyl hydrocarbyloxy aluminium compounds of the formula are obtainable by reacting a trihydrocarbyl aluminium with oxygen, an alcohol or phenol, or a trihydrocarbyloxyaluminium. In the formula R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> are C 1-8  hydrocarbyl radicals, and c+d is 1À5 to 2À0. Examples refer to
Patent GB-751441-A (GB)
Title: Winding unit for automatic cop winding machines
Inventor: KELEN BELA GYURITS ISTVAN
IPC: F16D3/70
Filed: 1954-07-30
Abstract: 751,441. Winding yarn. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. July 30, 1954, No. 22369/54. Class 120 (2). In a winding unit for an automatic cop-winding machine, the unit having a winding spindle and an idler provided with a threadtraversing track for guiding yarn on to the nose of the cop being formed on the spindle, the idler is arranged to bear with its tracked surface on the top of the cop for forming the nose thereof and for imparting axial displacement therealong the spindle while being formed, the functions of thread traversing, compressing and advancing of the cop all being performed by the one idler. As shown, yarn 60 to be wound into a cop 17, passes through a guide 38 on flexible arms 36, 37 of a stop-motion device, thence through a stationary guide 16 and the groove 11 of an idler 10, driven by friction from the spindle 18. The latter is driven by friction wheels 23, 24, through a shaft 19 which is carried by ballbearings 20, 21 in a sleeve 22. Fixed about the sleeve 22 is a spring-urged ring 25 which engages a push-rod 26 also engaged by a cam 58 on a control lever 56, the rod 26 functioning to engage the friction wheels 23, 24. When the lever 56 is depressed the rod 26 is advanced against the spring 28, a portion 31 of a ring- piece 27 latching the drive 23, 24 through a weighted bell-crank 32, 33. As the cop 17 grows it is forced along the spindle 18 until it contacts an abutment 52 on a spring-pressed sleeve 44. This sleeve is moved by the growing cop, until an abutment 40 carried thereby contacts a cam 39 to rotate the axle 35 of the stop motion 36, 37. This axle, in turn, moves a cam 34 to release the latching lever 32, 33 so that the spring 28 moves the ring 25 and sleeve 22 to separate the friction wheels 23, 24. In the event of yarn breakage, the flexible arms 36, 37 move the axle 35 to effect separation of the driving wheels 23, 24 as above described. In a further embodiment, the idler is formed from a conical sheet-pressing, the thread-traversing groove therein being of the non-intersecting kind.
Patent GB-184807-A (GB)
Title: Improvements in or relating to belt fasteners
IPC: F16G3/00
Filed: 1922-08-17
Abstract: 184,807. Elsner, W. Aug. 20, 1921, [Convention date]. Belt fastenings.-A fastening for leather, cotton, rubber, &c. b e l t s has inclined limbs 1, 2 carrying rows of teeth 3, 5, shorter limbs 4, 6 carrying similar teeth being so arranged that the belt ends 8, 9 must be bent for insertion in the fastening.
Patent GB-1245592-A (GB)
Title: Improvements in or relating to gauges for bottles or the like
Inventor: EVERS ERIC
IPC: B07C5/12
Filed: 1968-05-11
Abstract: 1, 245, 592. Gauging and sorting bottles. BEATSON, CLARK & CO. Ltd. Aug. 1, 1969 [May 11th, 1968], No. 22470/68. Heading G1M. A conveyer 3 moves bottles 1 past a photoelectric detector 14, 15 and mirror 17 or other form of detector which operates a first timer of a control circuit. If a bottle is oversize it contacts the ends of pegs 7, one series of which is adjustable to define the acceptable bottle width, and is prevented from passing through the gauge so that the first timer expires while the beam is still interrupted. On expiration of the first timer a solenoid 8 is energized to withdraw one series of pegs 7 and allow the oversize bottle to proceed through the gauge, and at the same time a second timer is activated to energize a solenoid 18 when the faulty bottle is opposite a reject plunger and shute 19. After the bottle moves past the pegs 7 the detector is again energized, the first timer is re-set, and the solenoid 8 de -energized to re-set the movable pegs. Instead of timers the apparatus may employ means to measure the distance moved by the conveyor while the beam is interrupted, one pulse being emitted by a generator for each unit length of conveyer and counters may form part of the control unit.
Patent GB-1508776-A (GB)
Title: Furnaces for heating blanks
IPC: F27D19/00
Filed: 1975-07-02
Abstract: 1508776 Discharging furnaces GKN FORGINGS Ltd 2 July 1975 [21 May 1974] 22538/74 Heading F4B Apparatus for withdrawing heated blanks from the exit end of a furnace 10 comprises one or more mechanical arms 14 each pneumatically or hydraulically operated by means of a respective cylinder 15 to engage and withdraw a blank from the furnace, operation of said arms being initiated by a signal from a photoelectric sensing device 26 located adjacent the exit end of the furnace when the beam is broken by the passage of a heated blank. Each arm 14 is formed as an extension of the piston rod of cylinder 15, and each cylinder is pivotally mounted on trunnions 16 on a frame member 17 for slewing movement about a vertical axis. When there are only two rows 18, 19 of blanks carried through the furnace on a belt conveyer 12, the two arms 14 operate in sequence moving in and out of the furnace along parallel paths to withdraw one blank after another. In the case of four rows 18, 19, 22, 23 of blanks passing through the furnace, each cylinder and hence its associated arm 14 is caused to pivot through a predetermined angle so that it can enter the furnace and remove a blank from one of the outer rows 22, 23; as shown the arms 14 would operate to take out blanks in the sequence 20; 21; 24; 25. Pivotal movement of each arm 14 is effected by means of an indexing mechanism (see Figs. 3 and 4, not shown) operated by an actuator 32 which is fixed to a guide rod 31 attached to arm 14 by means of a sleeve 29. The extreme end of each arm is provided with an appropriate form of finger or scoop for engaging the blanks.
Patent GB-1029005-A (GB)
Title: Improvements in or relating to vehicles
IPC: B60W10/18
Filed: 1964-06-01
Abstract: 1,029,005. Brake actuating mechanism. C. VAN DER LELY N.V. June 1, 1964 [June 14, 1963], No. 22626/64. Heading F2E. [Also in Division B7] In a tractor with brake pedals 26 for operating the rear wheel brakes independently in which operation of the pedals together actuates mechanism to interconnect the outlet and inlet of the hydraulic pump of the variable speed transmission which drives the tractor before applying the brakes (see Division B7), each brake pedal is pivoted at 25 to a vertical sleeve on which the rotatable seat is mounted and actuates the brake through an adjustable pin 29, a horizontal half ring 30, an arm 32 pivoted to the tractor frame at 34 and linkage 37A, 38, 39. The pedals may be interconnected by a spring-loaded pin (Fig. 3, not shown). The horizontal half rings 30 ensure that the brakes may be applied in any seat position.
Patent GB-703506-A (GB)
Title: Improvements in or relating to method and mechanism for weaving
IPC: D03D47/00
Filed: 1951-09-28
Abstract: 703506. Shuttleless looms. DRAPER CORPORATION. Sept. 28, 1951 [Nov.. 28, 1950], No. 22673/51. Class 142(2) In a shuttleless loom in which the weft is inserted in the form of a loop by a carrier which draws sufficient weft from a stationary supply to extend across the width of the warp, the weft is transferred to a second carrier, inserted from the opposite side of the loom, for the completion of a pick, the inserting carrier moving slower and for a shorter distance, than the second carrier. The carriers are as described in Specification 693,550. The inserting carrier 32 is carried on one end of a tape 30, the other end of which is wound round a wheel 19 oscillated through suitable gearing by an eccentric 23 mounted on a shaft 24. The second carrier 33 is carried by a tape 31 mounted and actuated in a similar manner to tape 30, the eccentric 34, in this case giving a greater throw than eccentric 23. The driving mechanism, and the means for clamping and cutting the weft, and the method of'inserting pairs of interconnected picks, is described in Specification 693,485. Specification 694,959 also is referred to.
Patent GB-1494605-A (GB)
Title: Piperazine compounds
IPC: C07D295/084
Filed: 1976-06-01
Abstract: 1494605 Sulphones YOSHITOMI PHARMACEUTICAL INDUSTRIES Ltd 1 June 1976 [3 June 1975] 22674/76 Heading C2C Novel compounds I (including salts thereof) wherein each of R<SP>1</SP> and R<SP>2</SP> is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms or a trifluoromethyl group; R<SP>3</SP> is a hydrogen atom, a hydroxyl group, phenyl, halophenyl, C 1 -C 4  alkylphenyl, C 1 -C 4  alkoxyphenyl or a trifluoromethylphenyl, pyridyl, 2- thienyl or 2-pyrimidinyl; m is 2 or 3; and n is 0, 1 or 2, are made by interacting compounds (II) and compounds (III) (X is an acid residue of a reactive ester, e.g. halogen, mesyloxy or tosyloxy). Pharmaceutical preparations having analgesic action contain (I) as active ingredient. Administration is orally, parenterally or topically.
Patent GB-1085531-A (GB)
Title: Apparatus for detecting or measuring the conductivity of a liquid
Inventor: BENNETT CYRIL FREDERICK
IPC: G01N27/06
Filed: 1964-06-02
Abstract: 1,085,531. Electro-physical measurement. N.V. TOOLS Ltd. June 2, 1965 [June 2, 1964], No. 22714/64. Heading G1N. [Also in Division G3] To control the pH value of a solution in e. g. a lithographic printing process by controlling the intermittent addition of phosphoric acid, a conductivity probe P is mounted in the bath. The probe is connected as a potential divider in series with a resistor VR1 and energized with square wave (obtained by chopping 12 volts A. C. to 6 volts by diodes D1, 2; ZD1, 2. ) and the output rectified by D3 is applied to a transistor amplifier TR1.. 6 to operate a relay RL1 when the conductivity reaches a level preset by potentiometer VR2. Operation of the relay RL1 lights lamp LA and energizes a pulsing circuit to e. g. add the phosphoric acid. The pulsing circuit comprises transistors TR7, 8, and relay RL2, with capacitor C3, which provides a 0À05 second pulse about every 30 seconds.
Patent GB-858531-A (GB)
Title: Hygienic cleaning appliance for domestic and other uses
IPC: A47L13/50
Filed: 1956-07-24
Abstract: 858,531. Pads; brushes. BESWICK, J. S. July 23, 1957 [July 24, 1956], No. 22795/56. Class 19. Liquid detergent is stored in a container having a loose fit in an outer container of complementary, preferably circular, cross-section. In the top of the inner container is a vent hole whilst in the bottom is secured a non-return flap valve that only allows detergent to pass out from the container. A resilient pad is positioned between the containers. An applicator pad or brush is charged with detergent by pressing it against the top of the inner container and reciprocating it so that detergent is drawn from the inner container and is pumped up around the container to the pad or brush. A disc on the handle serves as a splash guard and as a closure lid for the outer container when the pad or brush is not in use. In a second embodiment the detergent is contained between the outer container and a spool member having an axially bored stem connecting an upper disc having a sliding fit with the outer container to a lower disc of smaller diameter that when it rests on a resilient, annular, spacer ring on the bottom of the container traps the detergent between the spool and the outer container.
Patent GB-1292016-A (GB)
Title: Metallic laser
Inventor: CECCALDI MAURICE
IPC: H01S3/03
Filed: 1971-04-19
Abstract: 1292016 Lasers COMMISSARIAT A L'- ENERGIE ATOMIQUE 19 April 1971 [2 March 1970] 22857/71 Heading H1C In a tunable laser in which an active meta evaporated by an electric gas discharge between a cathode 10 and an anode 12 is ionized by the gas and produces stimulated emission, the cathode is in the form of a grooved block which is either formed wholly of the active metal, or consists of a different metal or an electrically insulating material having at least a part of the groove walls covered with a lining of the active metal. The gas may be helium and the metal cadmium. As shown in Fig. 1a, the grooved cathode 10 and a parallel rod anode 12 are housed in a glass gas tube 2 having Brewster end windows 4, the gas tube being located between resonator mirrors 6, 8 of which one is partially transmitting. The cathode is positioned so that the axis of symmetry of the groove coincides with the optical axis of the resonator. The groove has a depth greater than its width and may have its base enlarged and rounded as shown in Fig. 1b. Alternatively as shown in Fig. 2, the groove 20 may be formed of rectangular cross-section in a stainless steel block and have a cadmium lining 24 deposited on its base. Plural anodes 12 are also used, and the resonator consists of one plane and one spherical mirror 6, 8. The cathode may be cooled by a fluid passed through a duct 22, Fig. 1b, between inlet and outlet 14, 16, Fig. 1a. According to the Specification control of the anode-cathode voltage from a source 18 determines the wavelength of the stimulated emission, and frequency modulation can be obtained by varying the amplitude of the source voltage, e.g. for the reproduction of a colour image on a television receiver screen. The gas tube may include a control grid, and the cathode may be formed with a second groove oriented along a different axis to provide a dual output beam. The resonator mirrors may alternatively be within the gas tube.
Patent GB-945369-A (GB)
Title: A spark machining apparatus
IPC: B23H1/02
Filed: 1960-06-30
Abstract: 945,369. Cutting by spark discharge. ELOX CORPORATION OF MICHIGAN. June 30, 1960 [July 2, 1959], No. 22905/60. Heading B3V. In a spark machining apparatus in which a storage capacitance generating the sparks between an electrode tool and a workpiece is charged by unidirectional charging voltages at a predetermined frequency from a voltage source, the discharge circuit has a resonant frequency higher than the frequency of the source. The frequency of the source equals the desired spark repetition rate. An electronic oscillator 11, Fig. 1, controlled by a switch 19 is coupled by a transformer 21 through a semi-conductor rectifier 23 to charge a condenser 20 during alternate half-cycles, the condenser 20 discharging through the spark gap G. The condenser 20 may be replaced by a bank of condensers switchable into series or parallel to vary the cutting speed. A liquid dielectric such as kerosene is used. In a modification the supply voltage is adjusted to suit the required cutting speed by a variable tapping 29, Fig. 2. The half-wave rectifier is a bank of vacuum diodes 26. The voltage of the storage condenser 20 is limited to that normally attained during a single charging half-cycle by a non-linear resistor 30. In a further modification, a second condenser 31, Fig. 3, of equal capacitance to condenser 20 is inserted in series with the spark gap G to limit short-circuit current. The voltage across condenser 31 is limited by a non-linear resistor 32. If desired, the storage condenser 20 may be dispensed with when the rectifier is in the form of vacuum diodes, and its function is performed by the inherent capacitance of the filament transformer.
Patent GB-170962-A (GB)
Title: Improvements in building beams or slabs
IPC: E04C2/06
Filed: 1920-08-04
Abstract: 170,962. Gabriel, E. V., (Soc. della Fabbrica di Tavelloni A. Orzali & Co.). Aug. 4, 1920. Flooring and ceiling slabs; compound or composite slabs.-Concrete slabs are reinforced with two pairs of longitudinal wires or rods; the lower wires C are connected by end wires or stirrups D, and the upper wires E are short and connected by wires or rods F. Terra cotta or like blocks A may be embedded in the slabs. A floor may be formed by placing the slabs side by side on the flanges of I-beams. A single or double layer may be used, and the latter may have a filling of cinders or other material.
Patent GB-1158321-A (GB)
Title: Improvements in Lamp Tube Fittings.
Inventor: WEITZEL STANLEY LIONEL
IPC: H01R33/08
Filed: 1965-05-31
Abstract: 1,158,321. Lamp fittings. LINOLITE Ltd. 25 Aug., 1966 [31 May, 1965], No. 23089/65. Heading F4R. A fitting for fluorescent lamp tubes comprises a reflector formed with a longitudinal groove and at least two tube holders slidable in the groove. The reflector has two perpendicular arms 2, 4, the lower edge of the arm 2 being turned up at 6 to form the groove 8, and each tube holder 10 is retained in its correct position by a clip 16 embracing the holder and formed with a tongue 18 engaging a slot 20 (not shown) in the wall 6. The slot allows sufficient longitudinal movement of the holder for engagement with the tube. One side of each clip has the same length as the slot so that movement of a holder can be prevented by engaging this side in the slot. One or more of the holders may be double-ended to receive a second tube or a starter switch unit.
Patent GB-670371-A (GB)
Title: Improvements in or relating to liquid dispensing apparatus
Inventor: BERWICK WILLIAM RICHARD
IPC: B67D1/02
Filed: 1949-09-06
Abstract: 670,371. Apparatus for dispensing liquids. GASKELL & CHAMBERS, Ltd. Aug. 23, 1950 [Sept. 6, 1949], No. 23097/49. Classes 102 (i) and 102 (ii) In apparatus for dispensing liquids in which a dispensing chamber 4 is connected by a pipe 5 to a cylinder 1, in which reciprocates a piston to draw liquid into and expel it from the chamber, the chamber is formed from a head 8, walls 10 and base 9 which are clamped together by a connector 21 screwing on a tube 12 attached to the head ; a fluid tight joint is made by the seals 11 and the conical or spherical surface 24 engaging a suitably shaped surface on the base 9. The tube 12 has radial openings 13 and a delivery valve 17 and the connector 21 has an inlet valve 22. The head of the chamber may be attached to the base plate 2 of the cylinder 1 or alternatively the base of the chamber may be attached to a flange on the upper end of the cylinder. Specifications 634,631, 634,632 and 655,442 are referred to.
Patent GB-1008961-A (GB)
Title: An arrangement for the operation of an induction motor
IPC: H02P27/048
Filed: 1965-06-15
Abstract: 1,008,961. Control of A.C. motors. LICENTIA PATENT VERWALTUNGS - G.m.b.H. June 15, 1962 [June 16, 1961], No. 23108/62. Heading H2J. [Also in Division G3] An induction motor is supplied through static converter 2 having control unit 3 receiving a control signal from tachometer generator 6 so that the output frequency and voltage of the converter are varied proportionally with variations of the control signal. The unit 3 also receives a signal representing the deviation between the desired and actual speeds of the motor to limit the slip between the rotating field and the rotor. The deviation signal is supplied to the unit 3 through amplifier 4 whose output is limited and which has an adjustable proportional-integral action whereby the motor may have a rigid speed control or a control such that the speed yields to the torque. The amplifier 4 may also provide derivative or doublederivative signals. The control unit 3 may comprise a shunt-wound D.C. motor which converts the voltage received from adder 7 into a speed proportional to the voltage. A synchronous generator having a permanent magnet field is driven by the D.C. motor and supplies control signals to the converter 2. The output voltage of the adder 7 may serve as a reference voltage for speed regulation of the D.C. motor. The system may be adapted for digital control.
Patent GB-583715-A (GB)
Title: Improvements in or relating to step-by-step mechanisms
IPC: E04B2/74
Filed: 1944-11-21
Abstract: 583,715. Ratchet gearing. ERICSSON TELE PHONES, Ltd., and CROWE, D. C. Nov. 21, 1944, No. 23109. [Class 80 (iii)] [Also in Group XXXIX] A step-by-step mechanism, particularly for selector switches for automatic telephone systems, comprises a hub 3, to which is fixed a drum 4, rotatably mounted upon a fixed bush 2 and carrying a number of radial resilient wires 5, 6 whose outer ends engage in slots 8 in the rim 9 of drum 4. A disc 13 is adapted to be oscillated by an arm 17 to drive the hub 3 and drum 4 by means of teeth such as 14, 15 engaging the wires, further teeth 11, 12 being provided on a fixed plate 10 on the frame 1 of the mechanism to limit the movement on each oscillation. The drum 4 has a cam groove 18 in its rim 9 for actuating an external device such as an arm controlling electrical contacts. As shown in Fig. 3 sixteen radial wires are provided co-operating with eight teeth on the driving disc 13 and eight teeth of the fixed plate 10, all these teeth having a sloping end as indicated by the crossed portions. The arrangement is such that on movement of the disc 13 in a counter-clockwise direction the tooth 14 engages and drives wire 5 for 1/32 of a revolution until another wire 23 comes up against a fixed tooth 25. The reverse movement of disc 13 is allowed by fixed tooth 27 lifting wire 20 clear of tooth 21 but reverse movement of the wires and hub 3 is prevented by another fixed tooth 34 engaging behind wire 32. During the next oscillation of the disc 13 the tooth 28 will drive the wire 29 forward another 1/32 of a revolution and so on. The operation of each of the teeth and wires is duplicated by its diametrically opposite tooth or wire.